To simplify the fraction 5/20, we need to find the greatest common divisor (GCD) of the numerator (5) and the denominator (20).
The GCD of 5 and 20 is 5 since 5 is a factor of 20. Now, we divide both the numerator and the denominator by their GCD:
Numerator: 5 ÷ 5 = 1
Denominator: 20 ÷ 5 = 4
Therefore, the simplified form of 5/20 is 1/4.
So, 5/20 = 1/4.